Loom



LOOM

Filed Jan. 50, 1929 2 Sheets-Sheet 2 Patented Dec. 9, 1930 unirse stares LOUIS VISCOLOSI, OF PROVEDENCEy RHODE ISLAND, ASSIG-NOR TO TEE ESMOND MILLS, OF ESMOND, RHODE ISLANDA CORPORATION OF RHODE ISLAND LOOM ' Application lerd January 30, 1929. Serial No. 338,234.

My rinvention relates to improved means for weaving headings or other transverseld disposed nonornamental areas between the desiredl fan y patterns in `looms having a .1 ac uard or other fanciT `oattern mechanism. v.. ,l l

rllhis becomes highlyY desirable w ienit Yis dcsired to remove the completely Woven cloth roll and substitute a new one therefor and eliminate spoiling va complete pattern cloth insert such as a woven blanlret by cutting it in themiddle for this purpose. My invention makes 1t possible to weave a short irregulanheading between each roll s o that when the cloth is cutr for removal of the'roll, no ,complete blanlret or other cloth unit will be spoiled.

My invention is particularly 'applicable to Jacquard'looms and comprises'manually settable means to automatically reverse the digg; rection of rotation of the card cylinders vfor a predetermined number of cards and to automatically move the card cylinders forward up to andv including the first card reversed ano if desired, continuously repeating this es cycle and automatically atfthe completion of one cycleA or if desired after a predetermined number of cycles cutting outthe action of this 'supplemental mechanism to permit the card cylinders to continuously rotate forward to weave the desired number of blanlets or other cloth units. So far as l am aware .l am the first to provide a mechanism of this ,type on which the only manual operation y necessary is to set the supplemental mechanism substantially at the end of a complete pattern just prior to weaving a he ding and which will. after a heading of the desired length has been woven therein, automatically out out the action of the suixiplemental mechanism to permit the loom to go ahead tovautomatically weave the desired roll of cloth.

My invention further relates to the specific means-l employ for this purpose which also 5; ermits if desired, the on ositel7 dis nosed vide a supplemental mechanism for this purpose which will not only reverse the run of the pattern cards at any predetermined point and automatically resume the original direction of run of the cards up to said point having complete semi-reversal and scmiforward movement cycles but which will also effect any desired multiple of suoli cycles, will preyent'the waste of woven material, save time and reduce the labor of the attendant without any structural change of the jacquard portion or the weaving portion of the loom., These and such other objects of my invention as may hereinafter appear willbe best understood from a description of the accompanying drawings which illustrate an embodiment thereof.

In the drawings, Fig. 1 is a diagrammatic side elevation of certain parts of a double card cylinder Jacquard loom having my invention attached, showing diagrammatically the two four card Cylinders, the oppositely disposed pawls for turning said cylinders in opposite directions, and my supplemental mechanism including' the means I preferably employ to actuate it, preferably through the medium of the griff lever, with my supplevmentalmechanism functioning to raise the lower card cylinder pawls in a position to reverse the direction of rotation of the card cylinders, substantially at the beginning ofthe reversing portion of the cycle. f

Fig. 2 is a plan view of the cam means and adjacent reducing train of gearing I preferaly employ.

l? 3 is a diagrammatic side elevation similar to Fig. l with my supplemental mechanism functioning to lower' the upper pawls to a position to rotate the card cylinders forf wards substantially at the beginning of the forward movement port-ion. of the suppleI mental mechanism cycle.

Fig. l is a side elevation of the cani, ratchet and reducing train of gearing looking outwards from the inside of the loom.

In the drawings, wherein like characters of reference indicate like parts throughout, 10 generally indicates the frame of a loom. n l2 4indicates a portion of the frame of the jacquard mechanism thereof. The card cylin- Yders 1+l,wl1ich rotate the cards 17, are imitably Y rotatably mounted on aportion 'of the ja`c-' 1 quaru'trame V12 and are provided with suit-y able meansto operate them through the me-Y dium ofthe rods f 13. Suitable oppositely disposed payizvlsor hooks 16 ,andY 18 are pro-v vided Afor turning said cylinders 14 in opposite directionsl on the'outvvard movement :of timrelrmcitmg cycle thereof@ ,In theel/nf bvdiment showt ,Said yperils @emprise the upper pawls 16 pivotally mounted on the jacquard frame 12 above saidcylinders 141 adapted to contact the cylinder heads 15 of thecylinders to cause a quarter orwardrevolution thereof on 4each outward,,movement of `thecylinder. .",lhe lower davis ,18am `also suitably ivotally mountec on said fj acquard y,framesll ,loyv said cylinders and 4are adapted torontactthe cylinder head 15 of each cylin- :dei'sto ,cause ayquarter'reverserevolution of .cach cA lindert ,oneaoh voutwardmovementjof jthey inder in its reciprocating cycle. Y yIf deksire la single ,cylinder jacquard may be emfv ployed in lace ,of the double cylinder jacyguard'shown 'In .the ,donblecylinder jacquard shown however, the reciprocating @cycles of the card c ordersimnltaneous' y to'move the upper p'ayvls I 16 and the lower pa'wls Y,1.8 out of opera.-

lindersare alternate. In

tive position and vice versa I provide Suit.- able link means 20 pivotally atached to the l outerends of said pawls preferably through ftzlieinedinm v:oftheboles 22 formed therein.

"lpliejacquard mechanism hitherto described, vperticnlarly the upper pewls 16 thereof, are

commonly used in mostJacquard looms today f ,anidsIa-xn aware that others have also pro- `vided cooperating lower pawls 18 and some .havepwi'ded .mea-.11529 t0 provide Simultanmns opposite-'movement thereof, and also seme haveV provided means to .simultaneously j move the ,upper andloiver parvis 1.6 and from o, rat-ive ainoperative positions. SoY fer as limaivaredmivever, no ,onehas hithertofshown the specific means about to bedescribed for this; purpose which forms the Sub,-

Vject matter of my' invention.

- 1,.,provide the cam 24 suitably rotatably Y mounted, byineans of the pivot shaft 25, on

` a suitable portion of the loom frame 10.` Said cam 24lias apex-tion 26, preferably substans tially a lsemi-circle[of a 1relatively small radi` Aus, anda ortion 28 preferably substantially ai semizcirc e ,of a relatively larger radiusiv Said portions and 28 are connected by the inclined portlon 30 leading from the portion of l 'i @small radins 2 6 tothe portion 28 of greater.

radius, andthe :preferably radial portion 32 joining the portion 28 of larger radius to the portion g of small radins 4in the direction of tlie @ein S rotation. To suitably move said nonneetedpeivlsl and 18, provide the verfieallr @comme support 34 having' the 11P- Pr eitl Y3,6 twefirablyfiirotellyattahd .tot the 'lower pawl 18k by means of the pivot Vrespective lower pawl18b fend V,54 thereofsuitably pivota l lto a grifactnatinglever suitablypivotqpin 38 or otbern'ise.YVL vThere two card cylin-Y Y dersIY are employed, the upper end of sald rod 34Y is formed of' a U-shape having each U`leg l0 thereof 'suitably pivot-ally joined Vto 'each refpectivetpivot pinsA ,38,fand'each leg 40 o n'the semi-circle 28 of greater radius, itwill raise up' said lower pawls 18 tov reverse the Y direction .of rotation of the c arfd cylinders on recilnocation thereo, and when Vsaid .end 44 contactsfthe portion 26 pt lesser radius on said cflmQll'it will l,lower thefconnectedupper c ,paivls f1`61to apposition to rotate the cardy 'cyi-' inders- Miei-wards on reciprocation thereof. y s .To eiect rotation of said cam24 to permit the alternate bringing ofy the piVlSly 16 andff18fin`to Voperative -positiomgl proyide the ratChet 48,21ttached to said cam .Zllvprefidly f mounted. v

In order to vrotate `said cam Ipreferably Vprovide la 'pawl rod 50 having a lowerpavl means ofthe erably by being '.iigidly mounted on n pivot shaft `25, on whichjseidcam 24 is rig- 'endl52adapted lbe moved to a position on Y,suitablereciprocation of the rodl to iptate s ,said ratchet 48' and integral cam 24. Said rod 50 preferably [exten sobliquely ldovvnyWardl VAin aviposition to rotate said ratchet 48: an has tie upper end thereof duly' reciproca-ted Vin any V'suitable fashion, in the preferred embodiment by haviny y.the upper gy attached ed to a rtion 4of the jacquard ,frame 12,51-

fthough ifdesired, the rod-Ofmay be-obli n- .Y e l ly reciprocated in any" suitable manner. y

ygritfv actuating lever however, which raises the griff/easing tohft the griff yknives forms a veryconvenient means for this purpose.

, provide. suitable means to-allt'omatically cut `outthe Ifunctioning of the supplemental means lfor bringingrthepawls 16 andv 18'into and out of'operative relation. Such supplemental means .comprises the supporty 34 kcam 24;, ratchet l18 and operating rod 50,120 automatically move sail actuating rod to inoperativelposition after ia predetermined time to permit a. continuous forward movement ofthe card cylinders 14 through the l,lilriednnn of the upper paivls 16 as usual. In order to better ypermit thev weaving ,of a ,relatively large heading during a plurality .0f Cam Cyfcle's, I preferably'employ a reducing 'train num ,of gearing vto permit, a predetermine bei" of cam Cycles' before sind. Cam ,rotating iliiean's ,is automatically knocked Off t0 inve f Y erative position, and for this purpose I prefico erably employ the reducing train of gearing 58. Said reducing train of gearing 58 is suitably mounted on a supporting bracket 60 suitably attached toa vportion of the loom frame The shaft 25 also yhas mounted thereon the relatively small O'ear 62l adapted to enmesh a relatively larger gear 64 suitably mounted on a shaft 66 which has also mounted thereon the relatively small gear G8, said shaft 66 being suitably mounted on said bracket 60. Said relativelysmall gear 68'is adapted vto `enniesh the relatively larger gear 70 suitably 'mounted on the shafty 72 also rotatably mounted on the bracket 60. ln thevembodiment shown, this reducing train of gearing operates in av ratio of thirty-six to one to permit thirty-siii rotations of the cam 24 for one complete rotation ofy the last gear 70 in the reducing train. lf desired, any gear in the reducing train of gearing 58 may consist of a change speed gear.

'The preferred type of lmoclroif means shown comprises the lmockofl pin 74 projecting axially from the last gear 70 in the reducing train r58, and the curved'lmockolf hook 76 havingthe outer vend thereof suitably pivotally mounted through themedium of the pin 78 on the bracket 60 and having an inner inwardly curved portion 8O adapt ed to abut and knock olf said actuating Vrod 50 on an upward movement of said lnoclzolf hook 7G causedy by contact with thefknoclroff pin 74. It is thus obvious that as said knockoft hoolr is raised, the curved portion 80 thereof will Contact a curved portion 51 of said rod to move the lower pawl end 52 of said rod inwards out of contact with the ratchet 48. l also preferably provide the springV means 82 having one end 84 thereof suitably attached to the frame 10 and the opposite end 88 thereof suitably attached to i theV actuating rod 50 to move its pawl end laterally out of Contact with'the ratchet 48 after it has been moved inwardly by the curved portion 80of said hook 76.' i l its stated hitherto, the purpose of my invention is to provide a supplemental mechanism for inserting heading between a continuous run of iliatterns while weaving, nid for this purpose l breal; the continuons forwardl movement of the cylii'idei; cards to weave the pattern byinjecting into the stein in place of the primary card cylinder forward rotating means, a supplemental and au Hillary means operatiifeto continuously reverse the direction of rotation of the card cylinder for a. predetermined number of cards and then to permit forward movement of the 'ard cyl-` inder up to the first card reversely rotated,

and means to automatically cut out the operation of said auxiliary means after the completion of a cycle thereof to permit d mary forward driving` means for the card cylinder to continuously rotate said cards' forward to weave the pattern. In my'pre-V ferred embodiment the means to automati-V callyrcut out the operation of said auxiliary means occurs after a predetermined plurality of cycles of said supplemental means. Thus in operation, where two card cylinders are employed, they are continuously reciprocated, `moving in alternate directions Vby any suit-able means such as those heretofore describedand in the normal weaving of the pattern the upper pawls 16 are dropped to a position to contact the cylinder heads to continuously rotate the card cylinders for ward to weave the pattern. lVhen itis sired to weave a heading, the operating rod 50 is moved to a position so that the pawl end 52 thereof will engage the ratchet 48 and this normally occurs at the period of the cam cycle shown in Fig. l when the portion 28 of larger radius of the cam contacts the lower end 44 of the support 34, rto raise up the support and lower pawls 18 to cause a reverse rotation of the card cylinders on reciprocation thereof. This will occur for a predetermined number of cards or until thek semi-circle 28 of larger radius has passed the lower end 44 of the support 84 when said support 34 will drop by gravity'to cause the lower end 44 thereof to contact the portion ofysmallei" radius of said cam 24, thus automatically lowering the Vlower pawls 18 out of contact with the cylinder heads 15 and automatical-r ly lowering the upper pawls 16 through the medium of the links 2O into a position to engage the cylinder heads 15 to cause the usual forward movement of the card cylinders 14. If the semi-circle 26 is of substantially equal time'controlled length to the portion 28 of larger radius, it is obvious thatthe pawls 16 wil-l rotate the card cylinders forward an amount substantially equal to the amount they'have been reversed and namely to the same card at which the rearward rotation thereof commenced. Then if the actuating rod is raised in a position to continuously actuate the ratchet 44 to move the cam 24 forwards, it is obvious that a new cam cycle will come into operation, the lower end Y44 of the support 84 then riding up throughthe intermediate portion 30 of the cam to the por` tion 28 of larger radius thereof to permit the lower pawls 18 to again reverse the direction of rotation of the' cylinders 14. It is also clear that for the desired number of cam cycles the cards will be first alternatively re versed a predetermined time and then alternately'moved forward up to the reversal card, when, through the medium of the reducing gearing 58, after the desired number of cam EUS liu

port having the upper end attached to the lower pawl and the lower end thereof resting on said cam, whereby when said end rests on the semi-circle of greater radius it'will raise up said lower pawl to reverse the direction of rotation ofthe card cylinder and when said end contacts the portion of lesser radius on said cam, it will lower theconnected upper pawl to a position to rotate the car-d cylinder forwards, a ratchet attached to said cam, a rod having the upper end thereof attached to and reciprocated` by the. griffl actuating lever extending obliquely downwardly and having the lower end thereof terminating in a pawl end adaptedto be moved to a position on reciprocation thereof to rotate said ratchet and attached cam, a train of reducing gearing actuated'by saidcam, a linoclrofll pin projecting axially from the last gear in the train, a curved knockoff hoolr pivotally mounted on said frame adapted to be moved by said pin on a complete rotation of said last gear after multiple revolutions of said cam having an inwardly curved portion adapted to knockoff sai-d actuating rod inwardly on upward movement thereof, and spring means attached to said rod to move it laterally out of Contact with said ratchet after it is moved inwardly by said hook.

l. ln a loom, in combination, a jacquard mechanism including a frame, a griff actuating lever mounted thereon, a card cylinder mounted on said frame having a cylinder head, means to reciprocate said card cylinder, a pawl pivotally mounted on said frame above said cylinder adapted to contact the cylinder head to cause a quarter forward revolution thereof 0n each outward movement of the cylinder, a pawl pivotally mounted on said frame below said cylinder adapted to contact the cylinder head to canse a Lquarter reverse revolution thereof on each outward movement of the cylinder, ink means pivotally joining said pawls together, and a repeat mechanism comprising a cam rotatably mounted on the loom frame having a semicircle of a relatively small radius and a semicircle of a greater radius, a vertically reciprocable support having the upper end attached to the lower pawl and the lower end thereof resting on said cam, Ywhereby when said end rests on the semi-circle of greater radius it will raise up said lower pawl to reverse the direction of rotation of the card cylinder and when said end contacts the portion of lesser radius on said cam, it will lower the connected upper pawl to a position to rotate the card cylinder forwards, a ratchet gear attached to said cam, a rod having the upper end thereof attached to and reciprocated by the griff actuating lever extending obliquely downwardly and having the lower end thereof terminating in a pawl end adapted to be moved to a position on reciprocation thereof to rotate said ratchet and attached cam, a

train ofreducing gearing actuated by said cam, a knockoif pin projecting axially from the last gearfin the train, a curved knockoif hook pivotally mounted on said frame adapted to be moved by said pin on va complete ro'- tation of said last gear after multiple revolutions of said cam having an inwardly curved portion adapted to knoclroif said actuating rod inwardly on upward movement thereof.

5. ln a loom, in combination, a jacquard mechanism including a frame, a grid actuating lever mounted thereon, two rotatable card cylinders having cylinder heads-rotatable in opposite directions rotatably mounted on said frame, means to yalternately reciprocate/said cylinders in opposite directions, a pawl pivotally mounted on cach frame above each cylinder adapted to contact its cylinder head to cause a quarter forwart revolution thereof on each outward movement of the cylinder, a pawl pivotally mounted on said frame below yeach cylinder adaptedto contact its cylinder head to cause a quarter reverse revolution thereof .on each outward movement of the cylinder, link means pivotally joining each cylinder pawl together, and a repeat mechanism comprising a cam rotatably mounted on the loom frame having a semi-circle of a relatively small radius and a semi-circle of a greater radius, a vertically reciprocable support having a split U-shaped upper -end having each U-leg thereof attached to each respective lower pawl, and the lower end thereof resting on said cam, whereby when said end rests on the semi-circle of lgreater radius it will raise up said'lower pawls to reverse the direction of rotation of the card cylinders, and when said end contacts the portion of lesser radius on said calm, it will lower the connected upper pawls to a position to rotate the card cylinders forwards, a ratchet gear attached to said cam, a rod having the upper end thereof attached to and reciprocated by the griff actuating lever extending obliquely downwardly and having the lower. end thereof terminating in a pawl end ada-pted to be moved to a position on reciprocation thereof to rotate said ratchet and attached cam, a train of reducing gearing actuated by said cam, and lrnoclroii' means for said vreciprocating ,rod actuated on a complete rotation of the last gear in the reducing train of gearing after multiple revolutions of said cam to automatically permit continuous forward movement of the card cylinder,

6. In a loom, in combination, a jacquard mechanismincluding a frame, a grid acuating lever mounted thereon, two rotatable card cylinders having cylinder heads rotatable in opposite directions rotatably mounted on said frame, means to alternately reciprocate said cylinders in opposite directions, a pawl pivotally mount-ed on each frame above each cylinder adapted to contact ed on said `frame below each cylinder adapted tol Contact, its cylinder head toy cause a quarter reverse revolution thereof lon eachV "outivard movement ofv the cylinder, link Y 1 Y'cylindertogether, and a repeat I'nechaiiisn i l l .u u s loom frame having a semi-circle of la relai'neS-pivot'ally joining the pawls of each comprising va cani rotatably mounted on the tively small rradius and a semi-circle of a y,grffiater radius, a vertically reciprocable support having a splitU-shaped upper end hav-k ing cach YU-leg thereof attached to each re-V spective lower pawl, and the lower end theref n Yf resting on said cani, whereby when said V.uplgier end thereof attached toV and reciproend y,rests on the semi-circle of greater radus it will raise-up said lower pawls lto reverse the direction of rotation of thel cai-d cylinders and whensaid end 'contactsthe portion of lesser radius on said cani, it will owe'rthe upper lpawls to a position l'to ro'- tateA the card cylinders forwards, aV ratchet gear fattaehe'd ,toY said' cam, a rod'fhaving; 'the V Y v l t e curved portion adapted to' knockoff saidaccated ybythe griff' actuating lever 'exten' ing .obliquely downwardly and havingV the lower end thereof terminating yin a pawl eiidfad'apbV ,ed tofbe moved to apositi'on on rec'iproc'ation thereof tovrotate said ratchet and attached `cain,`a train o'f reducing Vgearing actuated by vrsaid cani, a knockoff pin proJecting axially from the .lasty gear lin the train, acurved v'linoekof hook pivotally mounted on said V'frame adapted to bemoved by said pin on a complete rotation of said last gear after lmultiple revolutions of saidY cam having an inwardly curved portion adapted to knock "off said actuating rod inwardly on upward ymovement thereof, and spring means atf e tac-'lied to Said rod toinove it laterally out "of Contact with saidratchet after it is moved i i inwardly by said hook.

L7.;Iii a loom, in combination, a jacquard mechanism including a yframe, a grilf actu y yating lever, two rotatablecard cylinders hay@ i rections .rotatably mounted on said' fra'ihfie,k

ineens 'toalternately reciprocate said cyli'ne ing cylinder heads rotatable in opposite di dersin opposite directions, a pawl pivotally 'mounte-don each frame aboveeacli'cyliiider f adapted to'contact its cylinder head to cause a quarter forward revolution thereof on each of on each outward moi-ement of thecy'lindeg-link means pivotally joining thel pawls j ofeach cylinder together", and a repeat mechanism' comprising a` cam rotatably mounted on they loom frame having ahs'einifcircle of a yrelatively small radius' and a semi-circle portion of 'a -greater radius, a yvertically rewie@ adattati@ giippoafiiiwiiig a' Spia' LJ-siiiipfed up jen endV having eachV U-'leg thereof at# tac yiied to each respective lowerfpawl, and the lower eiidthereof resting on'said cam, where- Y ybywhen saidl end rests on the semiLcircle of greater radius it will raise up said lower pawls to reverse the direction of rotation of the cardeylinders 'and when said'fend contactsv the'All portion of lesserl radius r on said cam, it' w'ill'lo'wer'the upper pawls to a position 'to rotatefthe card'cylinders forwards, a ratchet gearr attached to said'cam, a rod'having the uppei-,end thereof attached to and reciprocatedA by the griff actuating lever kextending -o'b'liqu'ely'downwardly'and having the lower end thereof terrniii'atingin a pawl endjiulapted tobe moved VtoV a position on reciprocation thereof to rotate said ratchetandattached `calma train of reducing gea-rinjgactu ated by saidfcam, a knockolf pin projecting axially from the last gear in the train, a curved knock- `,olf hooi; pivotally mounted on said frame .adapted to' be` moved by said pin 'on a completerotation 'of said last gearfafterrmultip'le revolutions VKof said cam having an inwardly f'tuating rod inwardly on upward'movement thereof. f

8. In avloom, in combination, a jacquard 'mounted o n saidframe having acylinder jli'ead, means to reciprocate said cardcylin'der,

pawl "vot-ally niountedon said yframe above said' cyiiider adapted 'tto Contact the cylinder head to causea quarter forward revolution lthereof on leach,outward movement of the cylinder, a pawl pivota'lly' mountedfon saidy frame belowv said cylinder adapted Yto contact the cylinder head to cause a quarter rcverse revolution thereof on each outward movement ofthe cyliiidei-linkl 'means pivotally joining 'Said pawls together,` and a repeatniechanismcomprising a cam rotatably mounted on thelloom frame having a semicircle of arelatively small radius anda semicircle of agreater radius, a vertically reciprotcable support having the upper end attached tothe lower pawl and the lower end thereof resting on saidcain, whereby when said end rest-sv on the 4'semi-circle of greater radius it will lraise* up said'lower pawl to'L reverse ,they direction 'of rotation of the card cylinder and whensai'dfend, contacts the portion oflesser Y radius on said cam, it Ywill 'lower the 'upper 'pawl toa' position to rotatev thecard cylinder forwards, ay yratchet gear attached to. said campawl means 'to' rotate said ratchet, ineans Y to actuate said p aw'l means .to rotate 'said ratchet andiattached cam,a reducingtrai'n of gearing actuated by said'cam, and knocko'i means for saidpawl means actuatedon a complete 'rotation ofthe lastgearinr the reducingtrain of gearing after multiple revolutionsof said cam to `automati'cally permit inechanisniincluding a frame, a griff actuatying levermounted' thereon, a card cylinder CTR continuous forward movement of the card cylinder@ 9. In a loom, in combination, a'jacquard mechanism including a frame, a griff actuating lever mounted thereon, a card cylinder mounted on said frame having a cylinder head, means to reciprocate said card cylinder, a pawl pivotally mounted on said frame above said cylinder adapted to contact the cylinder head to cause a quarter forward revolution thereof on each outward movement of the cylinder, a pawl pivotally mounted on said frame below said cylinder adapted to Contact the cylinder heac to cause a quarter reverse revolution thereof on each outward movement of the cylinder, link means pivotally oining the outer ends of said pawls to gether, and a repeat mechanism comprising a cam rotatably mounted on the loom frame having a semi-circle of a relatively small radius and a semi-circle of a greater radius, a vertically reciprocable support having the upper end attached to the lower pawl and the lower end thereof resting on said cam, whereby when said end rests on the semicircle of greater radius it will raise up said lower pawl to reverse the direction of rotation of the card cylinder and when said end contacts the portion of lesser radius on said cam, it will lower the upper pawl to aposition to rotate the card cylinderforwards, a ratchet gear attached to said cam, pawl means to rotate said ratchet, means to actuate said pawl means to rotate said ratchet and attached cam, and lrnocloff means for said pawl means to automatically permit continuous forward movement of the card cylinder'.

l0. In a loom, in combination, a jacquard mechanism including a frame, two rotatable card cylinders having cylinder heads rotatable in opposite directions rotatably mounted on said frame, means to alternately reciprocate said cylinders in opposite directions, a pawl pivotally mounted on said frame above each cylinder adapted to contact its cylinder head to cause a quarter forward revolution thereof on each outward movement of the cylinder, a pawl pivotally mounted on said frame below said cylinder adapted to contactV the cylinder head to cause a quarte-r reverse revolution thereof on each outward movement of the cylinder, link means pivotally joining the pawls of each cylinder together, and a repeat mechanism comprising a cam rotatably mounted on the loom frame having a semi-circle of a relatively small radius and a semicircle of a greater radius, a vertically reciprocable support having a split U-shaped upper end having each U-leg thereof attached to each respective lower pawl, and the lower end thereof resting on said cam, whereby when said end rests on the semi-circle of greater radius itr will raise up said lower pawls to reverse the direction of rotation of the card cylinders and when said end contacts the portion of lesser radius on said cam, it will lower the upper pawls to a position to rotate the card cylinders forwards, a ratchet geark mechanism including a frame, two rotatable 1 card cylinders having cylinder' heads rotatiabl'e in opposite directions rotatably mounted o-n said frame, means to alternately reciprocate said cylinders in opposite directions, a pawl pivotally mounted ony said frame above each cylinder adapted to contact its cylinder head to cause al quarter forward revolution thereof on each outward movement of the cylinder, a pawl pivotally mounted on said frame below said cylinder adapted to contact the cylinder head to cause a quarter reverse revolution thereof on each outward movement of the cylinder, link means pivotally joining the pawls of each cylinder together, and a repeat mechanism comprising a cam rotatably mounted on the loom frame having a semi-circle of a relatively small radius and a semi-circle of a greater radius, a vertically reciprocable support having a split U-shaped upper endhaving each U-leg thereof ,attached to each respective lower pawl, and the lower end thereof resting on said cam, whereby when said end rests on the semi-circle of greater' radius it will raise up said lower pawls to reverse the direction of rotation of the card cylinders and when said end contacts the portion of lesser radius on said cam, it will lower the upper pawls to a. position to rotate the card cylindersforwards, a. ratchet gear attached to said cam, pawl means to rotate said ratchet, means to actuate said pawl means to rotate said ratchet and attached cam, and knochen means for said pawl means to automatically permit continuous forward movement of the card cylinders.

In testimony whereof l afiix my signature.

Louis visconosr. 

